<template>
  <div class="login-wrap">
    <div class="ms-login">
      <div class="ms-title">管理系统</div>
      <el-form :model="param"
               :rules="rules"
               ref="login"
               label-width="0px"
               class="ms-content">
        <el-form-item prop="loginname">
          <el-input v-model="param.loginname"
                    @input="ClearSpaceLoginName"
                    placeholder="请输入用户名">
            <el-button slot="prepend"
                       icon="el-icon-lx-people"></el-button>
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input type="password"
                    placeholder="请输入密码"
                    maxlength="32"
                    @input="ClearSpacePassword"
                    v-model="param.password"
                    @keyup.enter.native="submitForm()">
            <el-button slot="prepend"
                       icon="el-icon-lx-lock"></el-button>
          </el-input>
        </el-form-item>
        <el-form-item>
          <el-checkbox v-model="needSaveLoginName">记住用户名</el-checkbox>
          <el-checkbox v-model="needSavePassword">记住密码</el-checkbox>
        </el-form-item>
        <div class="login-btn">
          <el-button type="primary"
                     @click="submitForm()">登录</el-button>
        </div>
        <p class="login-tips">Tips : 用户名和密码随便填。</p>
      </el-form>
    </div>
  </div>
</template>

<script>
import { login } from '../../api/index';
import md5 from 'js-md5';
import { mapState, mapMutations } from "vuex";

export default {
  name: 'login',
  data () {
    return {
      param: {
        loginname: '',
        password: '',//a1Ab2Bc3C
      },
      needSaveLoginName: false,
      needSavePassword: false,
      rules: {
        loginname: [{ required: true, message: '请输入用户名', trigger: 'blur' }],
        password: [{ required: true, message: '请输入密码', trigger: 'blur' }],
      },
    };
  },
  created () {
    let setting = localStorage.getItem('LoginSetting');
    if (setting) {
      setting = JSON.parse(setting)
      this.needSaveLoginName = setting.needSaveLoginName ? true : false
      this.needSavePassword = setting.needSavePassword ? true : false
      if (setting.needSaveLoginName) {
        this.param.loginname = setting.loginname
      }
      if (setting.needSavePassword) {
        this.param.password = setting.password
      }
    }
  },
  methods: {
    ...mapMutations(["userLogin"]),
    ClearSpacePassword (value) {
      this.param.password = value.replace(/\s+/g, "");
    },
    ClearSpaceLoginName (value) {
      this.param.loginname = value.replace(/\s+/g, "");
    },
    submitForm () {
      this.$refs.login.validate(valid => {
        if (valid) {
          let password = this.param.password.length == 32 ? this.param.password : md5(this.param.password)
          login({ username: this.param.loginname, password }).then(res => {
            if (res.code !== 0) {
              this.$message.error(res.message);
            }
            else {
              this.$message.success('登录成功');
              let setting = { needSaveLoginName: this.needSaveLoginName, needSavePassword: this.needSavePassword }
              if (this.needSaveLoginName) {
                setting.loginname = this.param.loginname
              }
              if (this.needSavePassword) {
                setting.password = password
              }
              localStorage.setItem("LoginSetting", JSON.stringify(setting))
              this.userLogin({
                userName: this.param.loginname,
                userData: res.detail,
              });
              this.$router.push('/');
            }
          }).catch(res => {
            console.log(res);
          });

        } else {
          this.$message.error('请输入账号和密码');
          console.log('error submit!!');
          return false;
        }
      });
    },

  },
  computed: {
    ...mapState(["hasLogin", "userName"]),
  },
};
</script>

<style scoped>
.login-wrap {
    position: relative;
    width: 100%;
    height: 100%;
    background-image: url(../../assets/img/login-bg.jpg);
    background-size: 100%;
}
.ms-title {
    width: 100%;
    line-height: 50px;
    text-align: center;
    font-size: 20px;
    color: #fff;
    border-bottom: 1px solid #ddd;
}
.ms-login {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 350px;
    margin: -190px 0 0 -175px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.3);
    overflow: hidden;
}
.ms-content {
    padding: 30px 30px;
}
.login-btn {
    text-align: center;
}
.login-btn button {
    width: 100%;
    height: 36px;
    margin-bottom: 10px;
}
.login-tips {
    font-size: 12px;
    line-height: 30px;
    color: #fff;
}
</style>